Use C++11 features in core/html

Source/core/html/HTMLEmbedElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Stefan Schimanski (1Stein@gmx.de)
  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 42 matching lines @@
 }
 
 static inline RenderPart* findPartRenderer(const Node* n)
 {
     if (!n->renderer())
         n = Traversal<HTMLObjectElement>::firstAncestor(*n);
 
     if (n && n->renderer() && n->renderer()->isRenderPart())
         return toRenderPart(n->renderer());
 
-    return 0;
+    return nullptr;
 }
 
 RenderPart* HTMLEmbedElement::existingRenderPart() const
 {
     return findPartRenderer(this);
 }
 
 bool HTMLEmbedElement::isPresentationAttribute(const QualifiedName& name) const
 {
     if (name == hiddenAttr)
@@ skipping 32 matching lines @@
             m_imageLoader->updateFromElement(ImageLoader::UpdateIgnorePreviousError);
         }
     } else {
         HTMLPlugInElement::parseAttribute(name, value);
     }
 }
 
 void HTMLEmbedElement::parametersForPlugin(Vector<String>& paramNames, Vector<String>& paramValues)
 {
     AttributeCollection attributes = this->attributes();
-    AttributeCollection::iterator end = attributes.end();
-    for (AttributeCollection::iterator it = attributes.begin(); it != end; ++it) {
-        paramNames.append(it->localName().string());
-        paramValues.append(it->value().string());
+    for (const Attribute& attribute : attributes) {
+        paramNames.append(attribute.localName().string());
+        paramValues.append(attribute.value().string());
     }
 }
 
 // FIXME: This should be unified with HTMLObjectElement::updateWidget and
 // moved down into HTMLPluginElement.cpp
 void HTMLEmbedElement::updateWidgetInternal()
 {
     ASSERT(!renderEmbeddedObject()->showsUnavailablePluginIndicator());
     ASSERT(needsWidgetUpdate());
     setNeedsWidgetUpdate(false);
@@ skipping 61 matching lines @@
 {
     // http://www.whatwg.org/specs/web-apps/current-work/#exposed
     for (HTMLObjectElement* object = Traversal<HTMLObjectElement>::firstAncestor(*this); object; object = Traversal<HTMLObjectElement>::firstAncestor(*object)) {
         if (object->isExposed())
             return false;
     }
     return true;
 }
 
 }